Researchers ID biomarkers of response to immunotherapy for kidney cancer
The number of immune cells in and around kidney tumors, the amount of dead cancer tissue, and mutations to a tumor suppressor gene called PBRM1 form a biomarker signature that can predict — before treatment begins — how well patients with kidney cancer will respond to immunotherapy, according to new research directed by investigators at the Johns Hopkins Kimmel Cancer Center and its Bloomberg~Kimmel Institute for Cancer Immunotherapy.
In reviews of 136 kidney tumor biopsies taken for previous studies, investigators found that patients who had three positive factors — presence of immune cells in and around tumors, known as tumor-infiltrating immune cells, absence ...











